*** You may find it convenient to send more money than needed for one
order. The rest of it will be used to pay for the schematic diagrams in the
future. It will help to save you time. Schematic diagrams will be sent to
you the same day you order them and the required amount will be
automatically subtracted from your account.

If
you send 50 USD or more you will be able to
save not just your time but your money, too. In this case each diagram will
cost you 3 USD instead of 5 USD. In this
way you can buy 40 percent more schematic diagrams for the same amount of
money.